摘要
针对齿轮故障诊断中使用的齿轮箱箱体振动加速度信号的传递环节多,信号存在非线性交叉耦合的情况,研究了使用从传动轴端测取的扭转振动信号进行诊断的方法.对比了这两种传递路径不同振动信号的双谱特征,箱体振动加速度信号的传递路径复杂,导致其频率成分复杂;而扭转振动信号的传递环节少,获取信号的路径直接,干扰因素减少,信号频率成分比较单纯,利用通常使用的谱分析,故障特征就可以清晰地提取出来,利于齿轮故障的准确判断.
In gear fault diagnosis,box vibration acceleration signal pass many transmission link and there is nonlinear cross couple of signals,the torsional vibration signals measured from transmission axle is studied to carry out fault diagnosis.The bispectrum characteristics of vibration signals obtained through two different kinds of transfer paths are compared.Frequency components of box vibration acceleration signal are complex,while torsional vibration signal transfer links are less,transfer path is direct,thus interference factors are reduced,and frequency components of the signal are simpler.Through spectrum analysis,fault feature can be clearly extracted,which is helpful for accurate fault diagnose.
出处
《中北大学学报（自然科学版）》
CAS
北大核心
2012年第3期336-339,共4页
Journal of North University of China(Natural Science Edition)
关键词
传递路径
振动加速度信号
扭转振动信号
特征分析
transfer path
vibration acceleration signal
torsional vibration signal
feature analysis
